GM 331870 Block Nos Fan Shroud Extension Fiberglass General

( Brand: Gm ), ( Part Type: Fan Block Shroud Motor ), ( Items Included: Fan Shroud Extension ), ( Item Diameter: 19 In ), ( Manufacturer Part Number: 331870 ), ( Material: Fiberglass ), ( Universal Fitment: No ), ( Vintage Part: Yes )

Review GM General Motors Sm Block Nos Fan Shroud Extension Fiberglass fits CORVETTE 350 1973–1975

Introducing the 1973-1975 Corvette Fan Shroud Extension, a fiberglass component designed specifically for the 350 SBC (Small-Block Chevrolet) engines. This part is a must-have for anyone looking to enhance the cooling system of their classic 1973-1975 Corvette.

The fan shroud extension is a fiberglass piece that fits over the factory fan shroud and extends outwards, providing additional surface area for air to flow through the cooling system. This results in improved cooling efficiency, especially during high-performance driving or in hot weather conditions.

The fiberglass material used in the construction of this fan shroud extension offers several advantages. It is lightweight, which helps to reduce the overall weight of the vehicle and improve acceleration. It is also durable and resistant to corrosion, ensuring that the part will last for years to come.

The fan shroud extension is a direct fit for the 350 SBC engines used in the 1973-1975 Corvette. It is designed to be a seamless addition to the vehicle, blending in with the factory styling and maintaining the original look of the car. The part comes in the original GM textured gray finish, allowing it to match perfectly with the factory fan shroud.

Installation of the fan shroud extension is a straightforward process. It simply bolts on to the factory fan shroud using the existing hardware. No modifications to the engine bay or wiring are required, making it a hassle-free upgrade.

In summary, this fan shroud extension is an essential upgrade for any 1973-1975 Corvette with a 350 SBC engine. It provides improved cooling efficiency, is made of durable fiberglass material, and is a direct fit with no modifications required. This part is a great investment for anyone looking to maximize the performance and reliability of their classic Corvette.

Buying a 1973-1975 Corvette with a 350 SM block, fan shroud extension, and fiberglass GM part can be an exciting venture for classic car enthusiasts. However, like any automotive purchase, it comes with its pros and cons.

1. Originality: This specific Corvette model is a classic, and owning an authentic piece of automotive history can be a satisfying experience.

2. Performance: The 350 SM block is an upgraded engine option that provides better performance compared to the standard 327 cubic inch engine.

3. Rarity: A Corvette with a fiberglass GM fan shroud extension is a rare find, making your vehicle unique among other Corvettes of the same era.

4. Investment: Classic cars, especially those that are well-restored and maintained, can be a good investment. The value of the Corvette market tends to appreciate over time.

1. Cost: The cost of restoring a classic Corvette, especially one with a rare part like a fiberglass fan shroud extension, can be quite substantial.

2. Maintenance: Older cars require more maintenance than modern vehicles, and the cost of parts and labor can add up over time.

3. Depreciation: While classic cars can be a good investment, they can also depreciate rapidly if not properly maintained or if the market shifts.

4. Driving Experience: Some classic cars may not offer the same level of comfort and convenience as modern vehicles, which could be a drawback for daily driving.

Buying a 1973-1975 Corvette with a 350 SM block, fan shroud extension, and fiberglass GM part comes with its unique advantages and challenges. It requires a significant investment in time, money, and effort to restore and maintain the vehicle. However, the satisfaction of owning a rare, high-performance classic car can be well worth the cost. Ultimately, the decision to purchase one should be based on your personal preferences, budget, and passion for classic cars.

If you're considering buying a 1973-1975 Corvette with a 350 SM block, fan shroud extension, and fiberglass GM part, it's essential to do thorough research before making a purchase. Inspect the vehicle thoroughly, preferably with the help of a professional mechanic. Check the condition of the engine, transmission, and other critical components. Additionally, research the market value of similar Corvettes to ensure you're getting a fair price. Finally, consider joining a Corvette enthusiast club or community to connect with other owners and learn more about the unique features and challenges of owning a classic Corvette.

Details:

NOS parts are perfect for the Corvette owner wanting a truly original look. This is a NOS fiberglass Fan Shroud Extension for 1973 through 1975 350 Small Block Corvettes. 1973-1975 Corvette Fan Shroud Extension - 350 Small Block NOS GM 331870. This includes trims, mouldings, switches, chrome, wheels, hubcaps, side exhaust covers, spinners, dash inserts, our line of reproduction tachometers, and more.

Original GM part number 331870. It is a Genuine GM new old stock part in excellent condition with no visible cracks or damage. Fits: 1973, 1974, and 1975 350 small block Corvettes.

part #: 331870 prices

• $50.00-$149.00

specifications shroudshell:

• for models: 350, Corvette
• for years: 1973-1975
• brand: Gm
• part type: Fan Block Shroud Motor
• items included: Fan Shroud Extension
• item diameter: 19 In
• manufacturer part number: 331870
• material: Fiberglass
• universal fitment: No
• vintage part: Yes

general shroudshell:

• Car Truck Parts Accessories > Engine Cooling Components > Fan Shroud Assemblies
• condition: New other see details

offer shroudshell:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0
• started: September 15, 2025

seller shroudshell:

• city: Palm Desert, California
• # reviews: 6673
• rating: 100.0%

payments shroudshell:

• wallet: Google-pay
• other
• credit card: Discover

shipping shroudshell:

• carrier: USPS, UPS
• type: Calculated
• transit: 4-10 Days
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS 2nd Day Air
• class: Standard, Expedited
• cost: $53.16

returns shroudshell:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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